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7-18
Communicating with Devices on an ControlNet Link
Determining the API
The API (actual packets per interval) is related to the RPI for the connection
and the NUT of the network. Use this table to select the API to enter in the
above worksheet:
Example 1: DriveLogix
Controller and Remote I/O
In the following example, one DriveLogix5730 controller controls remote
I/O through a 1794-ACN15 module.
Example 1: Controlling Remote Devices
This example has DriveLogix1 controlling the I/O connected to the remote
1794-ACN15 module. The data the DriveLogix controller receives from the
remote I/O modules depends on how you configure the remote I/O modules.
You can configure each module as a direct connection or as rack optimized.
One chassis can have a combination of some modules configured as a direct
connection and others as rack optimized.
If:
Enter this value for the API:
RPI
≥
NUT and RPI
<
2
∗
NUT
NUT
RPI
≥
2
∗
NUT and RPI
<
4
∗
NUT
2
∗
NUT
RPI
≥
4
∗
NUT and RPI
<
8
∗
NUT
4
∗
NUT
RPI
≥
8
∗
NUT and RPI
<
16
∗
NUT
8
∗
NUT
RPI
≥
16
∗
NUT and RPI
<
32
∗
NUT
16
∗
NUT
RPI
≥
32
∗
NUT and RPI
<
64
∗
NUT
32
∗
NUT
RPI
≥
64
∗
NUT and RPI
<
128
∗
NUT
64
∗
NUT
RPI
≥
128
∗
NUT
128
∗
NUT
DriveLogix5730 Controller
(
DriveLogix1
)
1794-ACN with remote I/O
(
Remote1
)
ControlNet
Summary of Contents for Allen-Bradley DriveLogix 5730
Page 6: ...4 ...
Page 10: ...p 4 Notes ...
Page 22: ...1 12 What is DriveLogix5730 Notes ...
Page 68: ...3 20 Placing and Configuring Local I O Notes ...
Page 134: ...6 36 Communicating with Devices on an EtherNet IP Link Notes ...
Page 182: ...9 10 Communicating with Devices on a DH485 Link Notes ...
Page 200: ...B 10 Access Procedures Notes ...
Page 205: ......
Page 206: ......
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